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M M M isM = M M M M <br /> Roy F. Weston, Inc. Stockton Laboratory <br /> PURGEABLE PETROLEUM HYDROCARBONS BY MOD 8015 Report Date 10/17/92 16.05 <br /> RFW Batch Number- 92105019 Client: WESTON ECON/ EAST BAY MD Work Order- 06415-001-002 Page 1 <br /> Cust ID- MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 <br /> Sample RFW#• 001 002 003 004 005 006 <br /> Information Matrix. WATER WATER WATER WATER WATER WATER <br /> D F 10.0 1.00 1 .00 1 .00 1.00 1 .00 <br /> Units mg/L mg/L mg/L mg/L mg/L mg/L <br /> aaa-Trifluorotoluene I % 109 % 104 % 106 % 103 % 105 % <br /> Total Petroleum Hydrocarbons 3200 0 050 U 0 050 U 0 050 U 0.050 U 0.050 U <br /> Cust ID: MW-7 BLK BLK BS BLK BLK BS BLK <br /> Sample RFW# 007 92SVP283-MB1 92SVP283-MB1 92SVP283-MB2 92SVP283-MB2 92SVP283-MB3 <br /> Information Matrix: WATER WATER WATER WATER WATER WATER <br /> D F . 1 00 1 00 1 00 1 00 1 00 1.00 <br /> Units: mg/L mg/L mg/L mg/L mg/L mg/L <br /> aaa-Trifluorotoluene 107 % 114 % NS % 111 % NS % 114 <br /> Total Petroleum Hydrocarbons 0 050 U 0.050 U 94 % 0.050 U 88 % 0.050 U <br /> U= Analyzed, not detected. J= Present below detection limit. B= Present in blank NR= Not requested. NS= Not spiked. <br /> %= Percent recovery. D= Diluted out. I= Interference. NA= Not Applicable. *= Outside of Advisory limits. <br />